JPH0454544B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a casting processing apparatus for removing and processing a casting from a sand mold after pouring in a pouring line.

(Conventional technology) Conventionally, in the pouring line of the casting manufacturing process,
After the castings produced in the sand mold are removed from the sand mold, they are treated with shot blasting to remove any sand that has adhered to them, and are then separated into waste parts such as sprues and product parts and sorted. Processing is being done. There is a device for taking out and transferring the castings from the sand mold as disclosed in Japanese Patent Application Laid-Open No. 55-50966, and there is also a device for separating and sorting the castings into waste parts and product parts. Various types are generally known.

(Problems to be Solved by the Invention) However, in the conventional case, the castings were transferred each time the castings taken out from the sand mold were subjected to the sand removal treatment or when the sand removal treatment was transferred to the separation treatment. This resulted in a series of processing operations that were inefficient.

In view of the above, an object of the present invention is to enable a series of processes from sand removal to separation and sorting to be performed on the castings taken out from the sand mold without the need for delivery. Therefore, it is an object of the present invention to provide a casting treatment apparatus with excellent practicality that can improve the efficiency of the treatment.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention is to install a take-out station at a predetermined position of the pouring line where the sand mold after pouring is conveyed with the upper frame removed. A product separating station is arranged on one side of the pouring line in the pouring station at a predetermined distance from the pouring station in a direction substantially perpendicular to the pouring line, and a product separating station is arranged between the product separating station and the pouring station. A sand removal station and a waste material collection station are placed facing each other between the left and right stations on a circumference with a diameter of . A movable unit that rotates back and forth is provided. Each movable unit is provided with a sprue clamp device movable up and down. On the other hand, each of the above-mentioned sand removal stations is equipped with a sand removal device for removing sand adhering to the castings, and the above-mentioned product separation station is equipped with a product separation device that separates the product parts from the castings except for waste materials such as sprues, and each of the above-mentioned waste material collection stations is equipped with a product separation device that removes sand from the castings. A waste material collection device is installed to collect the waste parts of castings,
At the take-out station, the sprue of the casting is clamped by the sprue clamp device and the casting is taken out from the sand mold, and while the sprue is clamped, the movable unit reciprocates 180 degrees to move the casting to the sand removal station, product separation station, and It is configured to be sequentially transferred to a waste material collection station.

(Function) With the above configuration, in the present invention, the casting taken out from the sand mold by the sprue clamping device is moved to the sand removal station, product separation station and By sequentially transporting the castings to the waste material collection station, the sand adhering to the castings is removed by the sand removal device at the sand removal station, and the product parts excluding the waste materials are separated and collected from the castings by the product separation device at the product separation station. In the waste material recovery station, the waste material portion of the casting is collected by a waste material recovery device.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 3 show a casting processing apparatus A as an embodiment of the present invention.
is for taking out the casting w from the sand mold v after pouring and processing it from sand removal to separation and recovery. The molded metal is transported to the casting processing apparatus A side with the parts removed. A take-out station _S1 of the casting processing apparatus A is provided at a predetermined position on the pouring line B, and
On one side of the pouring line B of the take-out station _S1 , as a processing position for the casting w of the casting processing apparatus A, a product is placed at a position separated from the take-out station _S1 by a predetermined distance in a direction substantially perpendicular to the pouring line B. A separation station S ₂ is disposed, and a separation station S ₂ is disposed at an intermediate portion between the left and right stations S ₁ and S 2 on the circumference whose diameter is the distance between the product separation station S ₂ and the take-out station S ₁ . Dual-purpose stations _S3 and _S3 , which serve both as a sand removal station and a waste material collection station, are arranged facing each other.

1 is the above-mentioned 4 on one side of the pouring line B.
The movable unit 1 is a movable unit installed in the center of an area surrounded by two stations S ₁ to _{S 4} , and the movable unit 1 has a bearing member 3 erected on a mounting table 2 .
a rotating shaft 4 rotatably provided in the bearing member 3 with one end extending upward; a drive motor 5 attached to the upper outer peripheral surface of the bearing member 3 and capable of rotating in forward and reverse directions; A power transmission device 6 consisting of a sprocket, a belt, etc. that transmits the rotational driving force of the drive motor 5 to the rotating shaft 4; The arm 7 reciprocates 180 degrees around the axis of the rotary shaft 4, that is, the vertical line, above the take-out station S1 and _the product separation station _S2 by the forward and reverse rotation of the drive motor 5. It is configured as follows.

A sprue clamp device 9 is suspended from both ends of the arm 7 of the movable unit 1 via a lifting device 8, respectively. The sprue clamp device 9 includes a connecting member 10 connected to the lifting device 8.
and a pair of clamp arms 1 facing each other whose central portions are rotatably supported by the connecting member 10.
1, 11, and is arranged horizontally above the rotation support part (center part) of the clamp arms 11, 11,
The cylinder body 12a is one clamp arm 11
The clamp cylinder 12 is connected to the upper end of the clamp arm 11, and the tip of the piston rod 12b is connected to the upper end of the other clamp arm 11.
It is designed to hold the sprue w ₂₁ of the casting w at the lower end.

The elevating device 8 also includes a lifter cylinder 13 which is attached downward to the end of the arm 7 and whose tip (lower end) of the piston rod is connected to the connecting member 10 of the sprue clamp device 9. The ends of the arm 7 are vertically penetrated on both sides, and the lower end is connected to the sprue clamp device 9.
The sprue clamp device 9 is configured to move up and down while being guided by the guide rods 14, 14 by the operation of the lifter cylinder 13.

On the other hand, the product separation station S ₂ is provided with a product separation device 20.
0 is a runner w 22 of the product recovery chute 21 and a runner w 22 of the casting w which is provided so as to be able to pass through the product recovery chute 21 from the lower side of the product recovery chute ₂₁ and retract upwardly. A holding jig 22 that abuts and holds the metal from below, and a sprue w ₂₁ or runner from the casting w held by the holding jig 22.
In order to separate the product part w ₁ except for the waste material part w ₂ of w ₂₂ , the impact cylinder 23, . . . gives a blow to the product part w ₁ from above.

Although not shown in detail in the figure, each of the above-mentioned dual-purpose stations _S3 is provided with a sand removal device 30 that blows out shot, sand, etc. together with air from nozzles 31, etc. to remove sand adhering to the casting w. At the same time, chute 4 collects waste material part _w2 of casting w2.
A waste material recovery device 40 having a
The chute 41 of the waste material recovery device 40 is provided so as to be movable toward and away from the dual-purpose station _S3 . As described above, the sprue w ₂₁ of the casting w is clamped by the sprue clamping device 9 at the take-out station S ₁ on the pouring line B, and the casting w is removed from the sand mold v, with the sprue w ₂₁ still being clamped. , a station S 3 which also serves as the casting w by reciprocating the arm 7 of the movable unit ₁ 180 degrees in order to carry out processing from removing sand to separating and collecting the product part w ₁ of the casting w and collecting the waste part w ₂ . separation station
Each station in the order of S ₂ and dual-purpose station S ₃
The casting processing apparatus A of the present invention is configured to sequentially transfer to S ₂ and S ₃ .

Next, the operation of the casting processing apparatus A is controlled by one sprue clamp of the two sprue clamp devices 9, 9, which are provided at both ends of the arm 7 of the movable unit 1 so as to be movable up and down via the elevating device 8, respectively. A description will be given of the order in which the casting w is taken out of the sand mold v by the device 9, and the processing from sand removal to separation and recovery of the product portion _w1 of the casting w to recovery of the waste portion _w2 is performed.

Now, one sprue clamp device 9 is connected to the pouring line B.
It is located above the upper take-out station _S1 , and the lower ends of the pair of clamp arms 11, 11 of the sprue clamp device 9 are in an open state. In such a state, first, the lifting device 8
Due to the extension operation of the lifter cylinder 13, the sprue clamp device 9 descends and approaches the poured sand mold v being transported to the take-out station _S1 ,
By the extension of the clamp cylinder 12 of the sprue clamp device 9, the sprue w ₂₁ of the casting w protruding upward from the sand mold v is clamped between the lower ends of the clamp arms 11, 11. Thereafter, the sprue clamp device 9 is raised by the contraction operation of the elevating device 8, whereby the casting w is taken out upward from the sand mold v.

Next, with the sprue w ₂₁ of the casting w being held between the clamp arms 11 and 11 of the sprue clamping device 9, the arm of the movable unit 1 is rotated in one direction, for example, 90 degrees clockwise, so that the casting w is rotated in one direction. (1st
It is transferred to the dual-purpose station S ₃ (on the right side in the figure).
In this dual-purpose station _S3 , sand adhering to the casting w is removed by shots ejected from the nozzles 21, . . . of the sand removing device 20. At this time, the chute 41 of the waste material recovery device 40 is located away from the dual-purpose station _S3 .

After the sand removal process is completed at the multi-purpose station _S3 , the arm 7 of the movable unit 1 rotates 90 degrees clockwise again, and the casting w is transferred from the multi-purpose station _S3 to the product separation station _S2. . In this product separation station S ₂ , the product separation device 20 separates the product portion w ₁ from the casting w, which is supported in a suspended state by the sprue clamp device 9.
are separated and recovered. This product separation device 20
The operating sequence for separation and recovery of product part w ₁ is as follows:
First, the holding jig 22 holds the runner w ₂₂ of the casting w from below, and in this state the product part w ₁ of the casting w is held.
By applying a blow to the product from above using impact cylinders 23, . . . , the product portion _w1 is separated from the casting w and dropped onto the product collection chute 21. Thereafter, when the holding jig 22 is lowered to the bottom of the product collection chute 21, the product portion _w1 slides down on the product collection chute 21 and is collected at a predetermined position.

On the other hand, the arm 7 of the movable unit 1 rotates 90 degrees counterclockwise to remove the waste parts w ₂ of the sprue w ₂₁ and runner w ₂₂ that remain supported in a suspended state by the sprue clamp device 9. As a result, the product is transferred from the product separation station S ₂ to the combined station S ₃ again. The chute 41 of the waste material recovery device 40 has moved close to this dual-purpose station S ₃ before the waste material portion w ₂ is transferred, and the clamp cylinder 12 of the sprue clamp device 9 is contracted and the clamp arm 11 , ₁₁ is released, the waste material portion w ₂₂ is collected at a predetermined position by the chute 41.

And the waste material part of this dual-purpose station S ₃
After the collection of w ₂ is completed, the sprue clamp device 9 that is not holding the casting w is removed from the dual-purpose station S ₃ and transferred to the take-out station S ₁ by rotating the arm 7 of the movable unit 1 90 degrees counterclockwise again. return. Further, the chute 41 of the waste material recovery device 40 moves to a position away from the dual-purpose station _S3 . As described above, a series of processes for one sprue clamp device 9 from taking out the casting w and removing sand to separating and collecting the casting w are completed once, and by repeating this operation, a series of processes for the casting w are completed. are performed sequentially. In addition, other sprue clamp devices 9
In this case, a series of processes on the casting w are carried out in parallel with a phase difference of 180 degrees by the same operation as in the above case except that the direction of rotation of the arm 7 of the movable unit 1 is reversed.

Therefore, in this way, in the casting processing apparatus A of the embodiment, the take-out station on the pouring line B
In S ₁ , the casting w taken out from the sand mold v by the sprue clamp device 9 is removed from the sand dropper without transferring the casting w _.
Since a series of processes including separation and recovery of the waste material W2 and recovery of the waste material part _W2 can be performed continuously, it is possible to greatly speed up and improve the efficiency of casting processing.

Moreover, since the arm 7 of the movable unit 1 does not repeatedly rotate in one direction, but only rotates back and forth by 180 degrees, the sprue clamp device 9 and the lifting device are provided at both ends of the arm 7, respectively. The electrical wiring, air piping, etc. of No. 8 can be easily performed, which is advantageous for practical implementation.

In the above embodiment, a sand removal station and a waste material collection station are installed at the middle between the left and right stations S ₁ and S ₂ on the circumference whose diameter is the distance between the take-out station S ₁ and the product separation station S ₂ . The dual-purpose stations S ₃ and S ₃ that also serve as a station are arranged opposite to each other, and each of the dual-purpose stations S ₃ is provided with a sand removal device 30 and a waste material recovery device 40, but the present invention is not limited to this. Upper left and right stations S ₁ ,
A sand removal station and a waste material collection station are arranged separately and facing each other between S ₂ , and each sand removal station is provided with a sand removal device, and each waste material collection station is provided with a waste material recovery device. Good too. In this case, the chute of the waste material collection device need not be movable toward and away from the waste material collection station as in the above embodiment, but may be of a fixed type.

Further, the movable unit is not limited to the type that rotates using an arm, but may be provided with an annular rail and run on the rail.

(Effects of the Invention) As described above, according to the casting processing device in the pouring line of the present invention, the sprue of the casting is clamped by the sprue clamp device at the take-out station of the pouring line, the casting is taken out from the sand mold, and the sprue is removed from the sand mold. By sequentially transporting the castings while holding them to the sand removal station, product separation station, and waste material collection station by reciprocating 180 degrees of the movable unit, the product parts of the castings can be separated and collected from the sand removal station, and the waste materials can be removed. Since the series of processes up to the recovery of the parts can be performed continuously without handing over the castings, the efficiency of casting processing can be greatly improved. Moreover, since the movable unit only rotates back and forth by 180 degrees, the apparatus itself, especially the electrical wiring and air piping of the sprue clamp apparatus, etc., are simple and easy to implement, which is advantageous.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a partially cutaway side view taken along the line - in FIG. 1, and FIG. FIG. 3 is a partially cutaway side view showing a state where A... Casting processing equipment, B... Pouring line, S ₁ ... Taking out station, S ₂ ... Product separation station, S ₃
...combined station, v...sand mold, w...casting,
w ₁ ...Product part, w ₂ ...Waste material part, W ₂₁ ...Gate, 1
...Movable unit, 9...Gate clamp device, 20...
Product separation device, 30... sand removal device, 40... waste material recovery device.

Claims (1)

[Claims] 1. A take-out station is provided at a predetermined position on the pouring line where the sand mold after pouring is transported with the upper frame removed, and a take-out station is provided on one side of the pouring line at the take-out station, which is approximately perpendicular to the pouring line. A product separation station is arranged at a predetermined distance apart from the take-out station in the direction, and sand is placed oppositely between the left and right stations on a circumference whose diameter is the distance between the product separation station and the take-out station. A dropping station and a waste material collection station are arranged, and a movable unit that reciprocates 180 degrees around a vertical line is provided above the above-mentioned take-out station and product separation station, and each movable unit has a sprue. While the clamping device is installed to be able to move up and down, each of the sand removal stations is equipped with a sand removal device that removes sand adhering to the casting, and the product separation station removes product parts from the casting excluding waste parts such as sprues. Each of the waste material collection stations is provided with a waste material recovery device that collects the waste material portion of the casting, and at the take-out station, the sprue of the casting is clamped by the sprue clamp device and the casting is placed in a sand mold. Note that the cast metal is taken out from inside and sequentially transferred to a sand removal station, a product separation station, and a waste material recovery station by reciprocating the movable unit 180 degrees while holding the sprue. Casting treatment equipment in the hot water line.